J&E Machine Tech AR-15 Pistol Buffer Tube Combo Kit - 6061-T6 Aluminum Black

The J&E Machine Tech AR-15 Pistol Buffer Tube Combo Kit bundles the key components needed to complete a Mil-Spec pistol buffer tube assembly on an AR-15 platform pistol build. The tube itself is machined from 6061-T6 aluminum in a black finish to Mil-Spec diameter - small and lightweight enough for an AR pistol, yet strong enough to stand up to short-barreled carbine use.

This combo pairs the buffer tube with everything needed for installation and reliable function: a foam insert that fits inside the tube, a carbine buffer spring, and a 3 oz carbine buffer in black. Proper gunsmith fitting is required at the receiver extension threads to ensure the tube and endplate seat correctly for consistent cycling.

Whether you're building an AR pistol from the lower up or refreshing a worn tube on an existing pistol-caliber build, this J&E Machine Tech combo delivers the strength and dimensional accuracy of a Mil-Spec component at a working-gunsmith price point.